JP2014036191A - Electrical device having circuit board and circuit-board built-in connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrical device having a circuit board in which terminals mounted on the circuit board are supported in a stable state, and a circuit-board built-in connector using the electrical device.SOLUTION: An electrical device includes: a circuit board 4 in which mounting components 43 constituting an electrical circuit are provided on at least a surface; electrical components 2 and 3 constituting the electrical circuit; and a pedestal 5 fixed to the circuit board 4 so as to cover the mounting components 43 and on which the electrical components 2 and 3 are installed. At least either of an input terminal 44 constituting an input section of the electrical circuit and an output terminal 45 constituting an output section of the electrical circuit is supported by both the circuit board 4 and the pedestal 5.

Description

  The present invention relates to an electric device including a board on which an electric circuit is configured, and a board built-in connector using the electric device.

  For example, as described in FIG. 3 of Patent Document 1 below, a configuration in which terminals are erected on a substrate is known. Generally, the terminal is supported by being pressed into a hole formed in the substrate and soldered to the substrate (land).

JP-A-10-302596

  If the terminal is supported on the substrate at a single point, there is a problem in the stability of the terminal. In particular, as described in Patent Document 1, when the connector is inserted into and removed from the terminal erected on the substrate, the terminal may be removed. In order to solve such problems, it may be possible to increase the number of terminals supported by the board of the terminal (more than one “foot” of the terminal), but the shape of the terminal becomes complicated, and material costs and processing There arises a problem that the cost is increased and the mounting space of the board is increased by the terminals.

  In view of the above circumstances, the problem to be solved by the present invention is to provide an electric device including a substrate that is supported in a stable state with terminals mounted on the substrate, and a board built-in connector using the electric device. is there.

  In order to solve the above-described problems, an electric device including a substrate according to the present invention includes a substrate provided with a mounting component that constitutes an electric circuit on at least a surface thereof, an electric component that constitutes the electric circuit, and the mounting component. A pedestal on which the electrical component is installed fixed to the substrate so as to cover, at least of an input terminal constituting the input part of the electric circuit and an output terminal constituting the output part of the electric circuit The gist is that either one is supported by both the substrate and the pedestal.

  Further, the pedestal is formed with a terminal holding portion protruding upward from the surface thereof, and at least one of the input terminal and the output terminal is a main body portion of the pedestal and the terminal holding portion. It is only necessary to be supported by both the substrate and the pedestal by being passed through the through-hole formed in.

  The electrical component includes a magnetic body placed on the pedestal and one or a plurality of coils provided outside the magnetic body, and at least one of the coils is outside the magnetic body. What is necessary is just to be comprised by the conductive pattern formed in the said board | substrate which electrically connects the several electroconductive member distribute | arranged to and the adjacent electroconductive members.

  The board built-in connector according to the present invention includes the electrical device and a case in which the electrical device is accommodated, and the case includes the input terminal supported by both the substrate and the pedestal, and the case. The gist is that a connector portion in which at least one of the output terminals is located and into which the mating connector can be fitted is formed.

  In the electrical equipment including the board according to the present invention, a pedestal that supports the electrical components and protects the mounting parts provided on the board is provided, and the terminal is supported by this pedestal as well as the board. Therefore, it is difficult to cause problems such as disconnection of terminals. That is, the present invention is excellent in that the pedestal, which is a member that supports electrical components and protects mounted components, is also used for supporting terminals.

  In addition, as described above, if the terminal holding part protruding from the surface is formed on the pedestal, the through hole through which the terminal formed in the terminal holding part passes is above the pedestal surface. Will be located. Therefore, water that has entered the pedestal side is prevented from entering the substrate side through the through-hole.

  Further, as described above, a conductive member is disposed outside the magnetic body placed on the pedestal, and the conductive member is connected to a conductive pattern formed on the substrate, so that a coil is formed around the magnetic body. Can be built.

  In addition, by housing the electrical device including the above board in a case provided with a connector part into which the mating connector can be fitted, a board built-in connector that does not come off even if the mating connector is inserted or removed is obtained. .

Fig.1 (a) is a top view of the electric equipment with which the coil was formed with the electroconductive member and the conductive pattern, and FIG.1 (b) is the sectional view on the AA line shown to Fig.1 (a). Fig.2 (a) is a top view of the electric equipment using a base, FIG.2 (b) is the BB sectional drawing shown to Fig.2 (a). FIG. 3A is a plan view of an electric device in which a guide portion is formed on a pedestal (with a through hole formed in the guide portion), and FIG. 3B is a schematic view of the C- shown in FIG. FIG. FIG. 4A is a plan view of an electric apparatus having a guide portion formed on a pedestal (having a groove formed in the guide portion), and FIG. 4B is a DD shown in FIG. It is line sectional drawing. Fig.5 (a) is a top view of an electric equipment provided with the board | substrate concerning one Embodiment of this invention, FIG.5 (b) is the EE sectional view taken on the line shown to Fig.5 (a). It is sectional drawing of the connector with a built-in board concerning one Embodiment of this invention. 7A is a side view (left side view of FIG. 6) of the board built-in connector according to the embodiment of the present invention, and FIG. 7B is a cross-sectional view taken along line FF shown in FIG. 7A. FIG. FIG. 8A is a plan view of an electric device formed such that the lands are not arranged on the same circle, and FIG. 8B is formed using the pedestal so that the lands are not arranged on the same circle. It is a top view of an electric equipment.

  The present invention will be described below. In the following description, the vertical direction (height direction) refers to the vertical direction in each sectional view, and the plane (horizontal) direction refers to the horizontal direction in each sectional view. In each figure, components such as elements mounted on the substrate are omitted except those related to the present invention.

  An electric apparatus 1a shown in FIG. 1 includes a magnetic body 2, a coil 3 provided outside the magnetic body 2, and a substrate 4. Specifically, a well-known transformer is constructed in a state where it is supported on the substrate 4 by the magnetic body 2 and the coil 3 provided outside thereof.

  The magnetic body 2 is formed by forming a magnetic material (for example, ferrite) into a circular shape (annular shape). As shown in FIG.1 (b), the cross section of the magnetic body 2 cut | disconnected by the plane along radial direction is a rectangular shape. The magnetic body 2 is placed on the surface (upper surface) of the substrate 4.

  The coil 3 is composed of a conductive member 31 and a conductive pattern 32 formed on the substrate 4. In this embodiment, both the primary side coil and the secondary side coil of the transformer are constructed as follows. The conductive member 31 is a member in which a wire made of a conductive material is formed in a substantially “U” shape (substantially “U” shape). Specifically, it is a member composed of two wires extending in the vertical direction and a wire extending in the horizontal direction connecting the two wires. The space inside the conductive member 31 is formed in such a size that the magnetic body 2 can be inserted. Specifically, the length between the two wires extending in the vertical direction, that is, the length of the wire extending in the horizontal direction is slightly larger than the length in the radial direction of the magnetic body 2.

  An end portion of the conductive member 31 is passed through a positioning hole 42 which is a through hole formed in the substrate 4. The positioning holes 42 are formed by the number of the conductive members 31 on the outer side and the inner side of the circular magnetic body 2. Specifically, when the positioning holes 42 formed on the outer side of the magnetic body 2 and the positioning holes 42 positioned on the radial inner side of the positioning holes 42 are taken as one set, the number of the positioning holes 42 sets is the conductive member. It matches the number of 31. One conductive member 31 is passed through one of the positioning hole 42 sets having one end, and the other end is passed through the other of the positioning hole 42 sets.

  A land 41 is formed around the positioning hole 42 on the back surface (lower surface) of the substrate 4. That is, lands 41 are formed on the outside and inside of the magnetic body 2. Each land 41 is electrically connected by a conductive pattern 32 formed on the back surface of the substrate 4. Specifically, when a set of lands 41 formed on the outer side of the magnetic body 2 and lands 41 positioned on the radial inner side of the land 41 is formed as a set, the land 41 is formed on the outer side of the magnetic body 2 constituting the certain 41 land set. The land 41 is electrically connected to a land 41 formed on the inner side of the magnetic body 2 constituting another land 41 set adjacent to one of the land 41 sets. Therefore, when the end portions of the conductive members 31 are connected to the corresponding lands 41 by soldering or the like, the conductive members 31 are connected in series by the conductive patterns 32. That is, one coil 3 is formed outside the magnetic body 2 by one conductive member 31 and one conductive pattern 32 (including the land 41). That is, on the outside of the magnetic body 2, the coil 3 having the number of windings corresponding to the number of the conductive members 31 to be used is formed by the plurality of conductive members 31 and the conductive pattern 32 connecting them. In the present embodiment, the end portion of the coil 3 formed in this way is directly connected to a circuit formed on the substrate 4.

  In the above configuration, the magnetic body 2 and the conductive member 31 are insulated. Such an insulating state is ensured by covering at least one of the magnetic body 2 and the conductive member 31 with an insulating material. In the present embodiment, the magnetic body 2 is placed on the surface of the substrate 4, the conductive member 31 is electrically connected, and the conductive pattern 32 constituting a part of the coil 3 is formed on the back surface of the substrate 4. Therefore, the insulating state between the magnetic body 2 and the conductive pattern 32 is ensured by the substrate 4 (an insulating material constituting the base of the substrate 4).

  The manufacturing process of the electrical equipment 1a having such a configuration is as follows. First, 1) a conductive pattern 32 including a plurality of lands 41 is formed on a substrate 4 (conductive pattern forming step). The conductive pattern 32 may be formed together with other patterns such as a pattern for electrically connecting elements mounted on the substrate 4 together with the conductive pattern 32 forming the coil 3. 2) The magnetic body 2 is supported on the substrate 4 (magnetic body supporting step). That is, the magnetic body 2 is placed at a predetermined position on the surface of the substrate 4. It is preferable to provide positioning and marks on the substrate 4 so that the magnetic body 2 can be easily placed at a predetermined position. Subsequently, 3) the plurality of conductive members 31 are arranged so that the magnetic body 2 is located inside and the end portion is close to the land 41 (conductive member arranging step). That is, the end of the conductive member 31 is passed through the positioning hole 42 formed in the substrate 4. Finally, 4) by electrically connecting the end portions of the respective conductive members 31 to the corresponding lands 41 (for example, soldering), the conductive members 31 and the conductive patterns 32 electrically connected thereto are used. The coil 3 surrounding the magnetic body 2 is formed (conductive member connecting step). Through the above steps, the coil 3 wound around the magnetic body 2 having a rectangular cross section is formed.

  According to the electric apparatus 1 a having such a configuration, the coil 3 of the transformer is constructed by the plurality of conductive members 31 disposed on the outside of the magnetic body 2 and the conductive pattern 32 formed on the substrate 4. That is, the coil 3 is formed around the magnetic body 2 by arranging a plurality of conductive members 31 at predetermined positions and electrically connecting the conductive members 31 to the conductive pattern 32 (for example, soldering). Therefore, it is not necessary to wind a conducting wire around the outside of the magnetic body 2 as in the prior art, and manufacturing is easy.

  In the above embodiment, the positioning hole 42 is formed in the substrate 4 and the conductive member 31 is connected to the land 41 on the back surface of the substrate 4. However, such a positioning hole 42 is not formed, A conductive pattern 32 constituting the land 41 and the coil 3 may be formed on the surface of the substrate 4, and the conductive member 31 and the land 41 may be connected (for example, soldered) on the surface of the substrate 4.

  Hereinafter, modifications of the electrical device 1a will be described. Note that the following description of the modified example will focus on differences from the above embodiment.

  The electric apparatus 1b shown in FIG. 2 is provided with a base 5 on which the magnetic body 2 is placed. That is, the magnetic body 2 is supported by the substrate 4 via the base 5. The pedestal 5 is fixed to the substrate 4 at a distance from the surface of the substrate 4 by a foot member 51 fixed so as to protrude downward from the end thereof. When there is a mounting component 43 such as an element or a conductive pattern mounted on the surface of the substrate 4, the interval is set to a size that does not interfere with the mounting component 43.

  A guide hole 52 that is a through hole is formed in the base 5 at a position that overlaps each of the plurality of lands 41 formed in the substrate 4 in the vertical direction. More specifically, each of the plurality of positioning holes 42 formed at the center of the land 41 is formed at a position overlapping in the vertical direction. A portion extending in the vertical direction of the conductive member 31 is passed through the guide hole 52. Since the guide hole 52 and the positioning hole 42 overlap each other in the vertical direction, the portion that passes in the vertical direction of the conductive member 31 passes through the guide hole 52 as described above, and the portion passes through the positioning hole 42 as it is. That is, the end of the conductive member 31 is in the state of being close to each land 41. Thus, the guide hole 52 formed in the base 5 functions as a guide element for bringing the end of the conductive member 31 close to the land 41.

  The guide hole 52 formed in the pedestal 5 gradually tapers toward the opening on the side where the conductive member 31 is inserted (on the side where the magnetic body 2 is placed, that is, upward in this example). A portion 521 may be formed. In this way, it is easy to insert the end portion of the conductive member 31 into the guide hole 52.

  The manufacturing process of the electric apparatus 1b having such a configuration is as follows. First, 1) a conductive pattern 32 including a plurality of lands 41 is formed on a substrate 4 (conductive pattern forming step). 2) A pedestal 5 is fixed to the substrate 4 with a predetermined distance from the surface of the substrate 4, and the magnetic body 2 is placed on the pedestal 5, whereby the substrate 4 is magnetized via the pedestal 5. The body 2 is supported (magnetic body supporting step). It is preferable to provide positioning and marks on the base 5 so that the magnetic body 2 can be easily placed at a predetermined position. Subsequently, 3) the plurality of conductive members 31 are arranged so that the magnetic body 2 is located inside and the end portion is close to the land 41 (conductive member arranging step). That is, by passing the end portion of the conductive member 31 through the guide hole 52 formed in the pedestal 5, the conductive member 31 is passed through the positioning hole 42 formed in the substrate 4 as it is. If the tapered portion 521 is formed in the guide hole 52, the operation of inserting the end portion of the conductive member 31 is easy. Finally, 4) by electrically connecting the end portions of the respective conductive members 31 to the corresponding lands 41 (for example, soldering), the conductive members 31 and the conductive patterns 32 electrically connected thereto are used. The coil 3 surrounding the magnetic body 2 is formed (conductive member connecting step). Through the above steps, the coil 3 wound around the magnetic body 2 having a rectangular cross section is formed.

  Thus, according to this electrical apparatus 1b, since the base 5 on which the magnetic body 2 is placed is used and the guide hole 52 that overlaps the land 41 (positioning hole 42) is formed in the base 5, the guide 5 is provided. By inserting the conductive member 31 into the hole 52, the conductive member 31 can be disposed at a predetermined position. Specifically, since the end of the conductive member 31 can be brought close to the land 41, manufacturing is easy. is there. Furthermore, the pedestal 5 can protect the elements and conductive patterns (mounting parts 43) mounted on the surface of the substrate 4. Further, since the conductive member 31 and the land 41 are connected (for example, soldered) on the back side (lower side) of the substrate 4, the pedestal 5 does not interfere with the connection work (connection process).

  The electric devices 1c and 1d shown in FIG. 3 and FIG. 4 have a pedestal 5 on which the magnetic body 2 is placed, which is fixed to the substrate 4 at a predetermined interval from the surface of the substrate 4 in the same manner as the electric device 1b. And a guide portion 53 is formed on the pedestal 5.

  The guide part 53 is a protrusion protruding upward from the surface (upper surface) of the base 5. In the configuration shown in FIG. 3 and FIG. 4, a guide portion 53 including a relatively small annular protrusion 531 and a relatively large annular protrusion 532 is formed. A space between the relatively small annular protrusion 531 and the relatively large annular protrusion 532 is formed in a size that allows the magnetic body 2 to be inserted. That is, the radial size between the relatively small annular projection 531 and the relatively large annular projection 532 is slightly larger than the radial size of the magnetic body 2. The magnetic body 2 is placed on the pedestal 5 while being positioned by both annular projections. That is, the outer surface of the magnetic body 2 is in close contact with the guide portion 53.

  Further, in the guide portion 53, a through hole 533 (see FIG. 3) and a groove 534 (see FIG. 4) are formed in a position overlapping the guide hole 52 formed in the base 5 and the land 41 formed in the substrate 4 in the vertical direction. Has been. Since the positioning hole 42 is formed at the center of the land 41, the through hole 533 and the groove 534 overlap the positioning hole 42 in the vertical direction. A portion extending in the vertical direction of the conductive member 31 is passed through the through hole 533 and the groove 534. In this way, when a portion extending in the vertical direction of the conductive member 31 is passed through the through hole 533 and the groove 534, the end of the conductive member 31 passes through the guide hole 52 of the base 5 and the positioning hole 42 of the substrate 4. Protrusively on the back side. That is, the end portion of the conductive member 31 is located at a position close to the land 41. The protruding portion is connected to the land 41 (for example, soldered), whereby the coil 3 is constructed by the conductive member 31 and the conductive pattern 32.

  The manufacturing process of the electric devices 1c and 1d having such a configuration is as follows. First, 1) a conductive pattern 32 including a plurality of lands 41 is formed on a substrate 4 (conductive pattern forming step). 2) The pedestal 5 is fixed to the substrate 4 with a predetermined distance from the surface of the substrate 4, and the magnetic body 2 is inserted into the guide portion 53 formed on the pedestal 5, whereby the pedestal is inserted. The magnetic body 2 is supported on the substrate 4 through 5 (magnetic body supporting step). Subsequently, 3) the end portion of the conductive member 31 is passed through the guide hole 52 of the base 5 and the positioning hole 42 of the substrate 4 through the through hole 533 or the groove 534 formed in the guide portion 53 (conductive member arranging step). . Finally, 4) by electrically connecting the end portions of the respective conductive members 31 to the corresponding lands 41 (for example, soldering), the conductive members 31 and the conductive patterns 32 electrically connected thereto are used. The coil 3 surrounding the magnetic body 2 is formed (conductive member connecting step). Through the above steps, the coil 3 wound around the magnetic body 2 having a rectangular cross section is formed.

  As described above, according to the electrical devices 1c and 1d, since the guide portion 53 that is in close contact with at least a part of the outer surface of the magnetic body 2 is formed on the base 5 on which the magnetic body 2 is placed, the magnetic body 2 Can be easily positioned at a predetermined position on the base 5. Further, the guide portion 53 is formed with a through hole 533 and a groove 534 through which the conductive member 31 passes, so that the guide portion serves as an element for positioning the conductive member 31 as well as an element for positioning the magnetic member 2. 53 can be used.

  In the present modification, the height of the guide portion 53 (length in the vertical direction) is preferably larger than the height of the magnetic body 2 (length in the vertical direction). In this way, as shown in FIGS. 3B and 4B, the upper surface of the magnetic body 2 and the portion extending in the horizontal direction of the conductive member 31 are in a non-contact state. This is because even if at least one of the conductive members 31 is not covered with an insulating material, the insulation state between the two can be secured. Strictly speaking, the height difference between the upper surface of the guide portion 53 and the upper surface of the magnetic body 2 may be set to be equal to or greater than the insulation distance to be secured. Further, when at least one of the magnetic body 2 and the conductive member 31 is not covered with an insulating material in this way, both the portions extending in the vertical direction of the conductive member 31 and the magnetic body 2 are not in contact with each other. It is necessary that a part of the guide portion 53 exists between the two. That is, when the groove 534 is formed in the guide portion 53, the groove needs to be opened toward the radially outer side.

  In the above description, it has been described that the guide portion 53 includes the relatively small annular protrusion 531 and the relatively large annular protrusion 532, but this is merely an example. If the magnetic body 2 can be positioned (that is, in close contact with at least a part of the outer surface of the magnetic body 2) and the groove 534 or the through hole 533 through which the conductive member 31 passes can be formed, the shape Can be appropriately changed.

  As a specific example (electric device 1 including a substrate according to an embodiment of the present invention) in which an input unit and an output unit are provided in the electric devices 1b, 1c, and 1d using the pedestal 5 as described above, the following configuration is provided. Can be considered. 5 and 6 show the electric device 1 to which the configuration shown in FIG. 3 is applied, but the same technical idea can be applied to any configuration using the pedestal 5.

  The electric device 1 according to this example illustrated in FIG. 5 includes an input unit and an output unit for inputting and outputting to the electric device 1. The input unit has an input terminal 71. One end of the input terminal 71 extending in the vertical direction penetrates the substrate 4, and is electrically connected to the conductive pattern 32 on the back surface of the substrate 4 by soldering or the like. The other end of the input terminal 71 has a bifurcated shape, and the core wire of the input electric wire W is placed on the other end and connected by soldering or the like, so that the conductive pattern 32 formed on the substrate 4 is connected to the input terminal 71. The input wire W is electrically connected. The input wire W is fixed to the wire support portion 9. A specific configuration of the wire support portion 9 will be described later.

  As shown in FIG. 5 (b), the substantially central portion of the input terminal 71 (the portion between the one end and the other end) penetrates the base 5. That is, the input terminal 71 is supported by the substrate 4 and the pedestal 5. In this example, two portions of the substantially central portion of the input terminal 71 are bent in a substantially L shape, and a portion extending in a substantially horizontal direction between the bent portions is provided on the upper surface of the base 5. It is supported (placed) on the terminal holding portion 54. That is, the hole through which the input terminal 71 passes is formed in the main body portion (the flat plate portion on which the magnetic body 2 is placed) of the pedestal 5 and the input terminal holding portion 54, and the upper opening of the hole is from the surface of the pedestal 5. Also located at a high position.

  On the other hand, the output section has an output connector terminal 72 (corresponding to an output terminal in the present invention) that comes into contact with a terminal provided on the counterpart connector C when the counterpart connector C is fitted. One end side of the output connector terminal 72 extending in the vertical direction penetrates the substrate 4 and is electrically connected to the conductive pattern 32 on the back surface of the substrate 4 by soldering or the like. A portion that is bent from the portion extending in the vertical direction and extends in the horizontal direction protrudes toward the outside of the device. The protruding portion is a portion that contacts the terminal of the mating connector C. When the terminal of the mating connector C comes into contact, the terminal of the mating connector C and the conductive pattern 32 formed on the substrate 4 are electrically connected.

  As shown in FIG. 5B, the portion (the portion between the one end and the other end) extending in the vertical direction of the output connector terminal 72 penetrates the base 5. That is, the output connector terminal 72 is supported by the substrate 4 and the base 5. In this example, a connector terminal holding portion 55 protruding upward is provided on the upper surface of the pedestal 5, and a portion where the pedestal 5 and the output connector terminal 72 are in contact by the holding portion (the pedestal 5 is an output connector). The portion holding the terminal 72 is set to be large. That is, the hole through which the output connector terminal 72 passes is formed in the main body portion (the flat plate portion on which the magnetic body 2 is placed) of the base 5 and the connector terminal holding portion 55, and the upper opening of the hole is from the surface of the base 5. Also located at a high position.

  Thus, the electric device 1 according to this example has a configuration in which the terminals constituting the input unit and the output unit are supported not only by the substrate 4 but also by the pedestal 5 fixed to the substrate 4. That is, the base 5 that is a member for installing a transformer (corresponding to the electrical component in the present invention) and that protects the mounting component 43 such as an element or a conductive pattern mounted on the surface of the substrate 4 is connected to the terminal. It is excellent in that it is also used as a member for supporting in a stable state.

  In particular, in this example, the input terminal holding portion 54 and the connector terminal holding portion 55 are provided, the hole through which the input terminal 71 passes through the base 5 and the upper opening of the hole through which the output connector terminal 72 passes through the base 5 It is located at a position higher than 5 surfaces. Therefore, even if water enters the pedestal 5 side, water can be prevented from entering the substrate 4 side through the hole. Therefore, this example may be applied to an apparatus that needs to reliably prevent water from entering the substrate. As such a device, a device installed in the vicinity of a vehicle-side charging plug as a charging control device for an electric vehicle can be exemplified.

  The device shown in FIGS. 6 and 7 is a board built-in connector 1 ′ according to an embodiment of the present invention using the device according to the above specific example. The board built-in connector 1 ′ is provided with a case 8 that covers the electric device 1. The case 8 has a main body portion 81 and a connector portion 82 (connector housing). The main body 81 is formed in a box shape with one side (opposite the connector 82) open. A first lock hole 811 and a second lock hole 812 which are through holes penetrating in the vertical direction are formed in the vicinity of the upper edge and the lower edge of the opening. The space inside the main body portion 81 and the space inside the connector portion 82 are partitioned by a partition wall 83, and a positioning recess 831 that is recessed toward the connector portion 82 side on the main body portion 81 side of the partition wall 83. Is formed. The connector portion 82 is opened in a direction opposite to the opening of the main body portion 81, and constitutes a female connector into which a mating connector C inserted from the opening can be fitted. Since a well-known connector fitting structure can be applied to this connector fitting structure, a detailed description thereof will be omitted. A connector terminal insertion hole 832 that penetrates from the inside of the main body portion 81 to the inside of the connector portion 82 is formed on the positioning recess 831.

  The wire support portion 9 that supports the input wires W has two members (an upper wire support member 91 and a lower wire support member 92) that are divided in the vertical direction. As shown in FIG. 7, both members are connected so as to be lined up and down by lock structures 914 and 924 provided on the outside. In this example, the relative positional relationship between the convex portion 911 provided on one member and the concave portion 921 provided on the other member is maintained. Semicircular recesses 912 and 922 are formed on the lower side of the upper wire support member 91 and the upper side of the lower wire support member 92, and the recesses 912 and 922 are horizontal when both support members are connected. It becomes a circular through-hole penetrating through. The input wire W is passed through the through hole.

  In the present embodiment, as shown in FIG. 6, the position where the input wire W is connected to the input terminal 71 and the position where the input wire W is pulled out of the case 8 (the penetration formed by the depressions 912, 922). Hole position). Specifically, the end is pushed upward by a circular corner formed in the lower wire support member 92, and the portion located in the case 8 is bent. Therefore, even if the input wire W is pulled, the force is not directly applied to the connection portion (soldering portion) between the input wire W and the input terminal 71. That is, the input wire W can be prevented from coming off.

  A first lock protrusion 913 protruding upward is formed on the upper end of the upper wire support member 91. A second lock protrusion 923 that protrudes downward is formed at the lower end of the lower wire support member 92. In addition, at least one of the upper wire support member 91 and the lower wire support member 92 is fixed to a predetermined position with respect to the substrate 4 or the pedestal 5. This fixing structure is not limited to a specific structure. When the wire support member fixed to the assembly of the substrate 4 and the base 5 is inserted into the main body 81 from the opening, the first lock protrusion 913 and the second lock protrusion 923 are respectively connected to the first lock hole 811 and the first lock hole 811. While entering the second lock hole 812, a part of the base 5 engages with the positioning recess 831. That is, the substrate 4 and the pedestal 5 (members supported by these) are accommodated in the main body 81. When the board 4 and the pedestal 5 are thus housed, the output connector terminal 72 passes through the connector terminal insertion hole 832, and enters the space inside the connector portion 82 from the partition wall 83 that partitions the main body portion 81 and the connector portion 82. Protruding state. That is, a connector element in which the mating connector C is fitted is constructed by the connector portion 82 and the output connector terminal 72 located inside thereof. When the mating connector C is fitted into the connector portion 82, the terminal provided on the mating connector C contacts the output connector terminal 72.

  Thus, by accommodating the electrical device 1 in the case 8, the board built-in connector 1 'is obtained. By accommodating in such a case 8, the magnetic body 2 supported by the board | substrate 4 and the base 5 and the electroconductive member 31 provided in the outer side are protected. Further, as described above, the pedestal 5 is provided with the input terminal holding part 54 and the connector terminal holding part 55, and the input terminal 71 has a hole through the pedestal 5 and the output connector terminal 72 has a hole through the pedestal 5. Since the upper opening is positioned higher than the surface of the pedestal 5, even if water enters the main body 81, water can be prevented from entering the substrate 4 through the hole.

  The electric device 1 and the board built-in connector 1 ′ using the electric device 1 have a configuration in which an input terminal 71 to which an electric wire is connected is provided on the input side, and an output connector terminal 72 that constitutes a connector portion is provided on the output side. This is just an example. As long as the terminal is supported using not only the substrate 4 but also the pedestal 5 and water is prevented from entering the substrate 4 through the hole through which the terminal passes, the specifications of the terminal and the like can be changed as appropriate. . Further, only one of the input terminal 71 and the output connector terminal 72 may be supported by both the substrate 4 and the pedestal 5.

  The electric device 1e shown in FIG. 8A has a problem caused by using the magnetic body 2 formed in a circle and a plurality of conductive members 31 having the same shape, particularly a problem that may occur when the magnetic body 2 is relatively small. Is to eliminate.

  In this modification, the land 41 formed on the substrate 4 is formed so as not to be located on the same circle, specifically, so that the center of the land 41 is not located on one circle. That is, the lands 41 are formed so as to be shifted from each other in the radial direction of the magnetic body 2. Since the positioning hole 42 is formed at the center of the land 41, the positioning hole 42 is also formed so as not to be positioned on the same circle. The reason is as follows.

  If the magnetic body 2 formed in a circle is small, the space inside the magnetic body 2 in the substrate 4 is small. In such a case, it is difficult to form the lands 41 arranged along the same circle in the small space. In this modification, a plurality of lands 41 are not arranged along the same circle. The land 41 can be formed in the small space.

  Here, since the manufacturing cost will increase if the shape of each of the plurality of conductive members 31 is different, it is desirable that all of the conductive members 31 have the same shape. Assuming that the conductive members 31 having the same shape are used, when the lands 41 formed on the inner side of the magnetic body 2 are not arranged along the same circle, the magnetic body 2 The lands 41 formed on the outside do not line up along the same circle. In addition, in this electrical equipment 1e, the length of the part extended in the horizontal direction which comprises the electroconductive member 31 should be longer than the said electrical equipment 1a. If the length of the portion is increased, the position of the conductive member 31 in the radial direction with respect to the magnetic body 2 can be changed, and the degree of freedom in arranging the lands 41 is improved (the length of the portion extending in the horizontal direction). In addition, if the difference in the radial length of the magnetic body 2 is small, the conductive member 31 can hardly be moved in the radial direction.

  As described above, when the magnetic body 2 is formed in a circle and the plurality of conductive members 31 are formed in the same shape, the plurality of conductive members 31 are usually arranged in a circle. As a matter of fact, if the size of the magnetic body 2 formed in a circular shape is small, there is a possibility that a space for arranging the land 41 cannot be secured inside the magnetic body 2 (inside the circle). On the other hand, by preventing the lands 41 from being located on the same circle as in the electrical device 1e, the lands 41 can be arranged even when the space inside the magnetic body 2 is small. It becomes.

  In addition, in this modification, although the structure which does not use the base 5 like the said embodiment was demonstrated to the example, it is set as the structure using the base 5 like the said 1st modification and a 2nd modification. It is also possible (see the electric device 1f shown in FIG. 8B). Since the land 41 (positioning hole 42) is formed so as not to line up along the same circle, the guide hole 52 formed in the pedestal 5 that overlaps the land 41 in the vertical direction does not line up along the same circle. It becomes composition. If the pedestal 5 is used as described above, the input unit and the output unit are configured as in the configuration shown in FIGS. 5 and 6 (the electric device 1 and the board built-in connector 1 ′ using the same). The present invention can be applied to an apparatus in which the terminals 71 and 72 are supported by the substrate 4 and the pedestal 5.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

  For example, in the above-described embodiment and each modification, it has been described that both the primary side coil and the secondary side coil of the transformer are constructed by the conductive member 31 and the conductive pattern 32. Only the conductive member 31 and the conductive pattern 32 may be used. That is, when a plurality of coils 3 are constructed around the magnetic body 2, at least one of the plurality of coils 3 only needs to have the configuration. Further, the present invention can be applied to a configuration in which one coil 3 is provided outside one magnetic body 2. The number of turns of the coil 3 can be changed as appropriate.

1 (1a to 1f) Electrical equipment 1 'Board built-in connector
2 Magnetic body 3 Coil 31 Conductive member 32 Conductive pattern 4 Substrate 41 Land 42 Positioning hole 43 Mounting component 5 Base 52 Guide hole 521 Tapered portion 53 Guide portion 533 Through hole 534 Groove 71 Input terminal 72 Output connector terminal 8 Case 81 Body part 82 Connector part 9 Electric wire support part

Claims (4)

A substrate provided with a mounting component constituting an electric circuit on at least a surface;
An electrical component constituting the electrical circuit;
A base on which the electrical component is installed, fixed to the substrate so as to cover the mounting component;
With
At least one of an input terminal constituting an input portion of the electric circuit and an output terminal constituting an output portion of the electric circuit is supported by both the substrate and the pedestal. Electrical equipment comprising. The pedestal is formed with a terminal holding portion protruding upward from the surface thereof,
At least one of the input terminal and the output terminal is supported by both the substrate and the pedestal by passing through a through hole formed in the main body portion of the pedestal and the terminal holding portion. An electrical apparatus comprising the substrate according to claim 1. The electrical component has a magnetic body placed on the pedestal and one or a plurality of coils provided outside the magnetic body,
At least one of the coils is constituted by a plurality of conductive members arranged outside the magnetic body and a conductive pattern formed on the substrate that electrically connects adjacent conductive members. An electrical apparatus comprising the substrate according to claim 1 or 2. An electric device comprising the substrate according to any one of claims 1 to 3,
A case in which this electrical device is accommodated;
With
The case is formed with a connector portion in which at least one of the input terminal and the output terminal supported by both the substrate and the pedestal is located and into which a mating connector can be fitted. A board built-in connector.

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